AQUATIC INSECT ORDER KEY
AMPHIPODA
Scud
DECAPODA
ISOPODA
Sow Bug
ARACHNIDA
PLATYHELMINTHES, HIRUDINEA,
or OLIGOCHAETA
MOLLUSCA or GASTROPODA
Water Mite
Clam/Mussel or Snail
Flat Worm, Leech, or Aquatic Worm
Non-Insect Orders and Classes
COLEOPTERA
Adult Beetles
HEMIPTERA
True Bugs
TRICHOPTERA
Other Caddisfly
TRICHOPTERA
Net-Spinning Caddisfly
MEGALOPTERA
Dobsonflies/Fishflies
MEGALOPTERA
Alderflies
COLEOPTERA
Adult or Larval Beetles
EPHEMEROPTERA
Mayflies
PLECOPTERA
Stoneflies
ODONATA
Damselflies
ODONATA
Dragonflies
DIPTERA
True Flies